The nose, the lips and the ears are among the most popular body parts in cosmetic surgery.
Now it seems plastic surgeons are doing it on the chin too.
In a new study, scientists have found that people with chin disorders tend to have significantly lower plasticity in the visual cortex.
The findings were published online in the journal PLOS One.
They suggest that chin surgery, which is performed on the forehead, is not only safer than other procedures but is also less damaging.
Researchers from the University of Sydney used functional magnetic resonance imaging (fMRI) to look at brain activity in the two parts of the brain when participants were asked to rate facial expressions.
They found that the neural response to facial expressions differed depending on the patient’s facial features.
They said the findings suggest that the visual processing in the chin region may be affected by a variety of conditions that could be affecting how well a person performs in other areas of the body.
While the researchers say the study is the first to directly examine the neural basis of facial expression, it is the only one to look specifically at the brain activity during the evaluation of facial expressions and how it might relate to plasticity.
It is also important to note that the findings are not generalizable to other facial features, including the eyelids, the eyebrows and the mouth.